Commit | Line | Data |
---|---|---|
fa90c54f AV |
1 | /* |
2 | * QLogic Fibre Channel HBA Driver | |
bd21eaf9 | 3 | * Copyright (c) 2003-2014 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f AV |
5 | * See LICENSE.qla2xxx for copyright and licensing details. |
6 | */ | |
1da177e4 | 7 | #include "qla_def.h" |
2d70c103 | 8 | #include "qla_target.h" |
1da177e4 LT |
9 | |
10 | #include <linux/blkdev.h> | |
11 | #include <linux/delay.h> | |
12 | ||
13 | #include <scsi/scsi_tcq.h> | |
14 | ||
59e0b8b0 | 15 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
16 | /** |
17 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
18 | * @cmd: SCSI command | |
19 | * | |
20 | * Returns the proper CF_* direction based on CDB. | |
21 | */ | |
22 | static inline uint16_t | |
49fd462a | 23 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
24 | { |
25 | uint16_t cflags; | |
9ba56b95 | 26 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
2be21fa2 | 27 | struct scsi_qla_host *vha = sp->fcport->vha; |
1da177e4 LT |
28 | |
29 | cflags = 0; | |
30 | ||
31 | /* Set transfer direction */ | |
9ba56b95 | 32 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 33 | cflags = CF_WRITE; |
2be21fa2 | 34 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 35 | vha->qla_stats.output_requests++; |
9ba56b95 | 36 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
1da177e4 | 37 | cflags = CF_READ; |
2be21fa2 | 38 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 39 | vha->qla_stats.input_requests++; |
49fd462a | 40 | } |
1da177e4 LT |
41 | return (cflags); |
42 | } | |
43 | ||
44 | /** | |
45 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
46 | * Continuation Type 0 IOCBs to allocate. | |
47 | * | |
48 | * @dsds: number of data segment decriptors needed | |
49 | * | |
50 | * Returns the number of IOCB entries needed to store @dsds. | |
51 | */ | |
52 | uint16_t | |
53 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
54 | { | |
55 | uint16_t iocbs; | |
56 | ||
57 | iocbs = 1; | |
58 | if (dsds > 3) { | |
59 | iocbs += (dsds - 3) / 7; | |
60 | if ((dsds - 3) % 7) | |
61 | iocbs++; | |
62 | } | |
63 | return (iocbs); | |
64 | } | |
65 | ||
66 | /** | |
67 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
68 | * Continuation Type 1 IOCBs to allocate. | |
69 | * | |
70 | * @dsds: number of data segment decriptors needed | |
71 | * | |
72 | * Returns the number of IOCB entries needed to store @dsds. | |
73 | */ | |
74 | uint16_t | |
75 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
76 | { | |
77 | uint16_t iocbs; | |
78 | ||
79 | iocbs = 1; | |
80 | if (dsds > 2) { | |
81 | iocbs += (dsds - 2) / 5; | |
82 | if ((dsds - 2) % 5) | |
83 | iocbs++; | |
84 | } | |
85 | return (iocbs); | |
86 | } | |
87 | ||
88 | /** | |
89 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
90 | * @ha: HA context | |
91 | * | |
92 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
93 | */ | |
94 | static inline cont_entry_t * | |
67c2e93a | 95 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
96 | { |
97 | cont_entry_t *cont_pkt; | |
67c2e93a | 98 | struct req_que *req = vha->req; |
1da177e4 | 99 | /* Adjust ring index. */ |
e315cd28 AC |
100 | req->ring_index++; |
101 | if (req->ring_index == req->length) { | |
102 | req->ring_index = 0; | |
103 | req->ring_ptr = req->ring; | |
1da177e4 | 104 | } else { |
e315cd28 | 105 | req->ring_ptr++; |
1da177e4 LT |
106 | } |
107 | ||
e315cd28 | 108 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
109 | |
110 | /* Load packet defaults. */ | |
111 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
112 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
113 | ||
114 | return (cont_pkt); | |
115 | } | |
116 | ||
117 | /** | |
118 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
119 | * @ha: HA context | |
120 | * | |
121 | * Returns a pointer to the continuation type 1 IOCB packet. | |
122 | */ | |
123 | static inline cont_a64_entry_t * | |
0d2aa38e | 124 | qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) |
1da177e4 LT |
125 | { |
126 | cont_a64_entry_t *cont_pkt; | |
127 | ||
128 | /* Adjust ring index. */ | |
e315cd28 AC |
129 | req->ring_index++; |
130 | if (req->ring_index == req->length) { | |
131 | req->ring_index = 0; | |
132 | req->ring_ptr = req->ring; | |
1da177e4 | 133 | } else { |
e315cd28 | 134 | req->ring_ptr++; |
1da177e4 LT |
135 | } |
136 | ||
e315cd28 | 137 | cont_pkt = (cont_a64_entry_t *)req->ring_ptr; |
1da177e4 LT |
138 | |
139 | /* Load packet defaults. */ | |
8ae6d9c7 GM |
140 | *((uint32_t *)(&cont_pkt->entry_type)) = IS_QLAFX00(vha->hw) ? |
141 | __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00) : | |
1da177e4 LT |
142 | __constant_cpu_to_le32(CONTINUE_A64_TYPE); |
143 | ||
144 | return (cont_pkt); | |
145 | } | |
146 | ||
bad75002 AE |
147 | static inline int |
148 | qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) | |
149 | { | |
9ba56b95 GM |
150 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
151 | uint8_t guard = scsi_host_get_guard(cmd->device->host); | |
bad75002 | 152 | |
bad75002 AE |
153 | /* We always use DIFF Bundling for best performance */ |
154 | *fw_prot_opts = 0; | |
155 | ||
156 | /* Translate SCSI opcode to a protection opcode */ | |
9ba56b95 | 157 | switch (scsi_get_prot_op(cmd)) { |
bad75002 AE |
158 | case SCSI_PROT_READ_STRIP: |
159 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
160 | break; | |
161 | case SCSI_PROT_WRITE_INSERT: | |
162 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
163 | break; | |
164 | case SCSI_PROT_READ_INSERT: | |
165 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
166 | break; | |
167 | case SCSI_PROT_WRITE_STRIP: | |
168 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
169 | break; | |
170 | case SCSI_PROT_READ_PASS: | |
bad75002 | 171 | case SCSI_PROT_WRITE_PASS: |
9e522cd8 AE |
172 | if (guard & SHOST_DIX_GUARD_IP) |
173 | *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; | |
174 | else | |
175 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
bad75002 AE |
176 | break; |
177 | default: /* Normal Request */ | |
178 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
179 | break; | |
180 | } | |
181 | ||
9ba56b95 | 182 | return scsi_prot_sg_count(cmd); |
bad75002 AE |
183 | } |
184 | ||
185 | /* | |
1da177e4 LT |
186 | * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit |
187 | * capable IOCB types. | |
188 | * | |
189 | * @sp: SRB command to process | |
190 | * @cmd_pkt: Command type 2 IOCB | |
191 | * @tot_dsds: Total number of segments to transfer | |
192 | */ | |
193 | void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, | |
194 | uint16_t tot_dsds) | |
195 | { | |
196 | uint16_t avail_dsds; | |
197 | uint32_t *cur_dsd; | |
e315cd28 | 198 | scsi_qla_host_t *vha; |
1da177e4 | 199 | struct scsi_cmnd *cmd; |
385d70b4 FT |
200 | struct scatterlist *sg; |
201 | int i; | |
1da177e4 | 202 | |
9ba56b95 | 203 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
204 | |
205 | /* Update entry type to indicate Command Type 2 IOCB */ | |
206 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
207 | __constant_cpu_to_le32(COMMAND_TYPE); | |
208 | ||
209 | /* No data transfer */ | |
385d70b4 | 210 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
211 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
212 | return; | |
213 | } | |
214 | ||
444786d7 | 215 | vha = sp->fcport->vha; |
49fd462a | 216 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
217 | |
218 | /* Three DSDs are available in the Command Type 2 IOCB */ | |
219 | avail_dsds = 3; | |
220 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
221 | ||
222 | /* Load data segments */ | |
385d70b4 FT |
223 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
224 | cont_entry_t *cont_pkt; | |
225 | ||
226 | /* Allocate additional continuation packets? */ | |
227 | if (avail_dsds == 0) { | |
228 | /* | |
229 | * Seven DSDs are available in the Continuation | |
230 | * Type 0 IOCB. | |
231 | */ | |
67c2e93a | 232 | cont_pkt = qla2x00_prep_cont_type0_iocb(vha); |
385d70b4 FT |
233 | cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; |
234 | avail_dsds = 7; | |
1da177e4 | 235 | } |
385d70b4 FT |
236 | |
237 | *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); | |
238 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
239 | avail_dsds--; | |
1da177e4 LT |
240 | } |
241 | } | |
242 | ||
243 | /** | |
244 | * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit | |
245 | * capable IOCB types. | |
246 | * | |
247 | * @sp: SRB command to process | |
248 | * @cmd_pkt: Command type 3 IOCB | |
249 | * @tot_dsds: Total number of segments to transfer | |
250 | */ | |
251 | void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, | |
252 | uint16_t tot_dsds) | |
253 | { | |
254 | uint16_t avail_dsds; | |
255 | uint32_t *cur_dsd; | |
e315cd28 | 256 | scsi_qla_host_t *vha; |
1da177e4 | 257 | struct scsi_cmnd *cmd; |
385d70b4 FT |
258 | struct scatterlist *sg; |
259 | int i; | |
1da177e4 | 260 | |
9ba56b95 | 261 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
262 | |
263 | /* Update entry type to indicate Command Type 3 IOCB */ | |
264 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
265 | __constant_cpu_to_le32(COMMAND_A64_TYPE); | |
266 | ||
267 | /* No data transfer */ | |
385d70b4 | 268 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
269 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
270 | return; | |
271 | } | |
272 | ||
444786d7 | 273 | vha = sp->fcport->vha; |
49fd462a | 274 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
275 | |
276 | /* Two DSDs are available in the Command Type 3 IOCB */ | |
277 | avail_dsds = 2; | |
278 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
279 | ||
280 | /* Load data segments */ | |
385d70b4 FT |
281 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
282 | dma_addr_t sle_dma; | |
283 | cont_a64_entry_t *cont_pkt; | |
284 | ||
285 | /* Allocate additional continuation packets? */ | |
286 | if (avail_dsds == 0) { | |
287 | /* | |
288 | * Five DSDs are available in the Continuation | |
289 | * Type 1 IOCB. | |
290 | */ | |
0d2aa38e | 291 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
292 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
293 | avail_dsds = 5; | |
1da177e4 | 294 | } |
385d70b4 FT |
295 | |
296 | sle_dma = sg_dma_address(sg); | |
297 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
298 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
299 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
300 | avail_dsds--; | |
1da177e4 LT |
301 | } |
302 | } | |
303 | ||
304 | /** | |
305 | * qla2x00_start_scsi() - Send a SCSI command to the ISP | |
306 | * @sp: command to send to the ISP | |
307 | * | |
cc3ef7bc | 308 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 LT |
309 | */ |
310 | int | |
311 | qla2x00_start_scsi(srb_t *sp) | |
312 | { | |
385d70b4 | 313 | int ret, nseg; |
1da177e4 | 314 | unsigned long flags; |
e315cd28 | 315 | scsi_qla_host_t *vha; |
1da177e4 LT |
316 | struct scsi_cmnd *cmd; |
317 | uint32_t *clr_ptr; | |
318 | uint32_t index; | |
319 | uint32_t handle; | |
320 | cmd_entry_t *cmd_pkt; | |
1da177e4 LT |
321 | uint16_t cnt; |
322 | uint16_t req_cnt; | |
323 | uint16_t tot_dsds; | |
3d71644c | 324 | struct device_reg_2xxx __iomem *reg; |
e315cd28 AC |
325 | struct qla_hw_data *ha; |
326 | struct req_que *req; | |
73208dfd | 327 | struct rsp_que *rsp; |
ff2fc42e | 328 | char tag[2]; |
1da177e4 LT |
329 | |
330 | /* Setup device pointers. */ | |
331 | ret = 0; | |
444786d7 | 332 | vha = sp->fcport->vha; |
e315cd28 | 333 | ha = vha->hw; |
3d71644c | 334 | reg = &ha->iobase->isp; |
9ba56b95 | 335 | cmd = GET_CMD_SP(sp); |
73208dfd AC |
336 | req = ha->req_q_map[0]; |
337 | rsp = ha->rsp_q_map[0]; | |
83021920 | 338 | /* So we know we haven't pci_map'ed anything yet */ |
339 | tot_dsds = 0; | |
1da177e4 LT |
340 | |
341 | /* Send marker if required */ | |
e315cd28 | 342 | if (vha->marker_needed != 0) { |
7c3df132 SK |
343 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
344 | QLA_SUCCESS) { | |
1da177e4 | 345 | return (QLA_FUNCTION_FAILED); |
7c3df132 | 346 | } |
e315cd28 | 347 | vha->marker_needed = 0; |
1da177e4 LT |
348 | } |
349 | ||
350 | /* Acquire ring specific lock */ | |
c9c5ced9 | 351 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
352 | |
353 | /* Check for room in outstanding command list. */ | |
e315cd28 | 354 | handle = req->current_outstanding_cmd; |
8d93f550 | 355 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
1da177e4 | 356 | handle++; |
8d93f550 | 357 | if (handle == req->num_outstanding_cmds) |
1da177e4 | 358 | handle = 1; |
e315cd28 | 359 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
360 | break; |
361 | } | |
8d93f550 | 362 | if (index == req->num_outstanding_cmds) |
1da177e4 LT |
363 | goto queuing_error; |
364 | ||
83021920 | 365 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
366 | if (scsi_sg_count(cmd)) { |
367 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
368 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
369 | if (unlikely(!nseg)) | |
370 | goto queuing_error; | |
371 | } else | |
372 | nseg = 0; | |
373 | ||
385d70b4 | 374 | tot_dsds = nseg; |
83021920 | 375 | |
1da177e4 | 376 | /* Calculate the number of request entries needed. */ |
fd34f556 | 377 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 378 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 379 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
380 | if (req->ring_index < cnt) |
381 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 382 | else |
e315cd28 AC |
383 | req->cnt = req->length - |
384 | (req->ring_index - cnt); | |
a6eb3c9f CL |
385 | /* If still no head room then bail out */ |
386 | if (req->cnt < (req_cnt + 2)) | |
387 | goto queuing_error; | |
1da177e4 | 388 | } |
1da177e4 | 389 | |
1da177e4 | 390 | /* Build command packet */ |
e315cd28 AC |
391 | req->current_outstanding_cmd = handle; |
392 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 393 | sp->handle = handle; |
9ba56b95 | 394 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 395 | req->cnt -= req_cnt; |
1da177e4 | 396 | |
e315cd28 | 397 | cmd_pkt = (cmd_entry_t *)req->ring_ptr; |
1da177e4 LT |
398 | cmd_pkt->handle = handle; |
399 | /* Zero out remaining portion of packet. */ | |
400 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
401 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
402 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
403 | ||
bdf79621 | 404 | /* Set target ID and LUN number*/ |
405 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
9ba56b95 | 406 | cmd_pkt->lun = cpu_to_le16(cmd->device->lun); |
1da177e4 LT |
407 | |
408 | /* Update tagged queuing modifier */ | |
ff2fc42e AV |
409 | if (scsi_populate_tag_msg(cmd, tag)) { |
410 | switch (tag[0]) { | |
411 | case HEAD_OF_QUEUE_TAG: | |
412 | cmd_pkt->control_flags = | |
413 | __constant_cpu_to_le16(CF_HEAD_TAG); | |
414 | break; | |
415 | case ORDERED_QUEUE_TAG: | |
416 | cmd_pkt->control_flags = | |
417 | __constant_cpu_to_le16(CF_ORDERED_TAG); | |
418 | break; | |
419 | default: | |
420 | cmd_pkt->control_flags = | |
421 | __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
422 | break; | |
423 | } | |
c3ccb1d7 SK |
424 | } else { |
425 | cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
ff2fc42e | 426 | } |
1da177e4 | 427 | |
1da177e4 LT |
428 | /* Load SCSI command packet. */ |
429 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 430 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
431 | |
432 | /* Build IOCB segments */ | |
fd34f556 | 433 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
434 | |
435 | /* Set total data segment count. */ | |
436 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
437 | wmb(); | |
438 | ||
439 | /* Adjust ring index. */ | |
e315cd28 AC |
440 | req->ring_index++; |
441 | if (req->ring_index == req->length) { | |
442 | req->ring_index = 0; | |
443 | req->ring_ptr = req->ring; | |
1da177e4 | 444 | } else |
e315cd28 | 445 | req->ring_ptr++; |
1da177e4 | 446 | |
1da177e4 | 447 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
448 | |
449 | /* Set chip new ring index. */ | |
e315cd28 | 450 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
451 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
452 | ||
4fdfefe5 | 453 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 454 | if (vha->flags.process_response_queue && |
73208dfd AC |
455 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
456 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 457 | |
c9c5ced9 | 458 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
459 | return (QLA_SUCCESS); |
460 | ||
461 | queuing_error: | |
385d70b4 FT |
462 | if (tot_dsds) |
463 | scsi_dma_unmap(cmd); | |
464 | ||
c9c5ced9 | 465 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
466 | |
467 | return (QLA_FUNCTION_FAILED); | |
468 | } | |
469 | ||
5162cf0c GM |
470 | /** |
471 | * qla2x00_start_iocbs() - Execute the IOCB command | |
472 | */ | |
2d70c103 | 473 | void |
5162cf0c GM |
474 | qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) |
475 | { | |
476 | struct qla_hw_data *ha = vha->hw; | |
477 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
5162cf0c | 478 | |
7ec0effd | 479 | if (IS_P3P_TYPE(ha)) { |
5162cf0c GM |
480 | qla82xx_start_iocbs(vha); |
481 | } else { | |
482 | /* Adjust ring index. */ | |
483 | req->ring_index++; | |
484 | if (req->ring_index == req->length) { | |
485 | req->ring_index = 0; | |
486 | req->ring_ptr = req->ring; | |
487 | } else | |
488 | req->ring_ptr++; | |
489 | ||
490 | /* Set chip new ring index. */ | |
f73cb695 | 491 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { |
6246b8a1 | 492 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
98878a16 | 493 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); |
8ae6d9c7 GM |
494 | } else if (IS_QLAFX00(ha)) { |
495 | WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index); | |
496 | RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in); | |
497 | QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); | |
5162cf0c GM |
498 | } else if (IS_FWI2_CAPABLE(ha)) { |
499 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
500 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
501 | } else { | |
502 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
503 | req->ring_index); | |
504 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
505 | } | |
506 | } | |
507 | } | |
508 | ||
1da177e4 LT |
509 | /** |
510 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
511 | * @ha: HA context | |
512 | * @loop_id: loop ID | |
513 | * @lun: LUN | |
514 | * @type: marker modifier | |
515 | * | |
516 | * Can be called from both normal and interrupt context. | |
517 | * | |
cc3ef7bc | 518 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 519 | */ |
3dbe756a | 520 | static int |
73208dfd AC |
521 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
522 | struct rsp_que *rsp, uint16_t loop_id, | |
523 | uint16_t lun, uint8_t type) | |
1da177e4 | 524 | { |
2b6c0cee | 525 | mrk_entry_t *mrk; |
8ae6d9c7 | 526 | struct mrk_entry_24xx *mrk24 = NULL; |
8ae6d9c7 | 527 | |
e315cd28 AC |
528 | struct qla_hw_data *ha = vha->hw; |
529 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 530 | |
99b8212c | 531 | req = ha->req_q_map[0]; |
fa492630 | 532 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, NULL); |
2b6c0cee | 533 | if (mrk == NULL) { |
7c3df132 SK |
534 | ql_log(ql_log_warn, base_vha, 0x3026, |
535 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
536 | |
537 | return (QLA_FUNCTION_FAILED); | |
538 | } | |
539 | ||
2b6c0cee AV |
540 | mrk->entry_type = MARKER_TYPE; |
541 | mrk->modifier = type; | |
1da177e4 | 542 | if (type != MK_SYNC_ALL) { |
bfd7334e | 543 | if (IS_FWI2_CAPABLE(ha)) { |
2b6c0cee AV |
544 | mrk24 = (struct mrk_entry_24xx *) mrk; |
545 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
546 | mrk24->lun[1] = LSB(lun); | |
547 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 548 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 549 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 550 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
551 | } else { |
552 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
553 | mrk->lun = cpu_to_le16(lun); | |
554 | } | |
1da177e4 LT |
555 | } |
556 | wmb(); | |
557 | ||
5162cf0c | 558 | qla2x00_start_iocbs(vha, req); |
1da177e4 LT |
559 | |
560 | return (QLA_SUCCESS); | |
561 | } | |
562 | ||
fa2a1ce5 | 563 | int |
73208dfd AC |
564 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
565 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
566 | uint8_t type) | |
1da177e4 LT |
567 | { |
568 | int ret; | |
569 | unsigned long flags = 0; | |
570 | ||
73208dfd AC |
571 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
572 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
573 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
574 | |
575 | return (ret); | |
576 | } | |
577 | ||
2d70c103 NB |
578 | /* |
579 | * qla2x00_issue_marker | |
580 | * | |
581 | * Issue marker | |
582 | * Caller CAN have hardware lock held as specified by ha_locked parameter. | |
583 | * Might release it, then reaquire. | |
584 | */ | |
585 | int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) | |
586 | { | |
587 | if (ha_locked) { | |
588 | if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
589 | MK_SYNC_ALL) != QLA_SUCCESS) | |
590 | return QLA_FUNCTION_FAILED; | |
591 | } else { | |
592 | if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
593 | MK_SYNC_ALL) != QLA_SUCCESS) | |
594 | return QLA_FUNCTION_FAILED; | |
595 | } | |
596 | vha->marker_needed = 0; | |
597 | ||
598 | return QLA_SUCCESS; | |
599 | } | |
600 | ||
5162cf0c GM |
601 | static inline int |
602 | qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, | |
603 | uint16_t tot_dsds) | |
604 | { | |
605 | uint32_t *cur_dsd = NULL; | |
606 | scsi_qla_host_t *vha; | |
607 | struct qla_hw_data *ha; | |
608 | struct scsi_cmnd *cmd; | |
609 | struct scatterlist *cur_seg; | |
610 | uint32_t *dsd_seg; | |
611 | void *next_dsd; | |
612 | uint8_t avail_dsds; | |
613 | uint8_t first_iocb = 1; | |
614 | uint32_t dsd_list_len; | |
615 | struct dsd_dma *dsd_ptr; | |
616 | struct ct6_dsd *ctx; | |
1da177e4 | 617 | |
9ba56b95 | 618 | cmd = GET_CMD_SP(sp); |
a9083016 | 619 | |
5162cf0c GM |
620 | /* Update entry type to indicate Command Type 3 IOCB */ |
621 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
622 | __constant_cpu_to_le32(COMMAND_TYPE_6); | |
623 | ||
624 | /* No data transfer */ | |
625 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { | |
626 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
627 | return 0; | |
628 | } | |
629 | ||
630 | vha = sp->fcport->vha; | |
631 | ha = vha->hw; | |
632 | ||
633 | /* Set transfer direction */ | |
634 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
635 | cmd_pkt->control_flags = | |
636 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
2be21fa2 | 637 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 638 | vha->qla_stats.output_requests++; |
5162cf0c GM |
639 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
640 | cmd_pkt->control_flags = | |
641 | __constant_cpu_to_le16(CF_READ_DATA); | |
2be21fa2 | 642 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 643 | vha->qla_stats.input_requests++; |
5162cf0c GM |
644 | } |
645 | ||
646 | cur_seg = scsi_sglist(cmd); | |
9ba56b95 | 647 | ctx = GET_CMD_CTX_SP(sp); |
5162cf0c GM |
648 | |
649 | while (tot_dsds) { | |
650 | avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? | |
651 | QLA_DSDS_PER_IOCB : tot_dsds; | |
652 | tot_dsds -= avail_dsds; | |
653 | dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; | |
654 | ||
655 | dsd_ptr = list_first_entry(&ha->gbl_dsd_list, | |
656 | struct dsd_dma, list); | |
657 | next_dsd = dsd_ptr->dsd_addr; | |
658 | list_del(&dsd_ptr->list); | |
659 | ha->gbl_dsd_avail--; | |
660 | list_add_tail(&dsd_ptr->list, &ctx->dsd_list); | |
661 | ctx->dsd_use_cnt++; | |
662 | ha->gbl_dsd_inuse++; | |
663 | ||
664 | if (first_iocb) { | |
665 | first_iocb = 0; | |
666 | dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
667 | *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
668 | *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
669 | cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len); | |
73208dfd | 670 | } else { |
5162cf0c GM |
671 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); |
672 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
673 | *cur_dsd++ = cpu_to_le32(dsd_list_len); | |
674 | } | |
675 | cur_dsd = (uint32_t *)next_dsd; | |
676 | while (avail_dsds) { | |
677 | dma_addr_t sle_dma; | |
678 | ||
679 | sle_dma = sg_dma_address(cur_seg); | |
680 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
681 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
682 | *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); | |
683 | cur_seg = sg_next(cur_seg); | |
684 | avail_dsds--; | |
73208dfd | 685 | } |
2b6c0cee AV |
686 | } |
687 | ||
5162cf0c GM |
688 | /* Null termination */ |
689 | *cur_dsd++ = 0; | |
690 | *cur_dsd++ = 0; | |
691 | *cur_dsd++ = 0; | |
692 | cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; | |
693 | return 0; | |
2b6c0cee AV |
694 | } |
695 | ||
5162cf0c GM |
696 | /* |
697 | * qla24xx_calc_dsd_lists() - Determine number of DSD list required | |
698 | * for Command Type 6. | |
2b6c0cee AV |
699 | * |
700 | * @dsds: number of data segment decriptors needed | |
701 | * | |
5162cf0c | 702 | * Returns the number of dsd list needed to store @dsds. |
2b6c0cee | 703 | */ |
a9083016 | 704 | inline uint16_t |
5162cf0c | 705 | qla24xx_calc_dsd_lists(uint16_t dsds) |
2b6c0cee | 706 | { |
5162cf0c | 707 | uint16_t dsd_lists = 0; |
2b6c0cee | 708 | |
5162cf0c GM |
709 | dsd_lists = (dsds/QLA_DSDS_PER_IOCB); |
710 | if (dsds % QLA_DSDS_PER_IOCB) | |
711 | dsd_lists++; | |
712 | return dsd_lists; | |
2b6c0cee AV |
713 | } |
714 | ||
5162cf0c | 715 | |
2b6c0cee AV |
716 | /** |
717 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
718 | * IOCB types. | |
719 | * | |
720 | * @sp: SRB command to process | |
721 | * @cmd_pkt: Command type 3 IOCB | |
722 | * @tot_dsds: Total number of segments to transfer | |
723 | */ | |
a9083016 | 724 | inline void |
2b6c0cee AV |
725 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
726 | uint16_t tot_dsds) | |
727 | { | |
728 | uint16_t avail_dsds; | |
729 | uint32_t *cur_dsd; | |
e315cd28 | 730 | scsi_qla_host_t *vha; |
2b6c0cee | 731 | struct scsi_cmnd *cmd; |
385d70b4 FT |
732 | struct scatterlist *sg; |
733 | int i; | |
73208dfd | 734 | struct req_que *req; |
2b6c0cee | 735 | |
9ba56b95 | 736 | cmd = GET_CMD_SP(sp); |
2b6c0cee AV |
737 | |
738 | /* Update entry type to indicate Command Type 3 IOCB */ | |
739 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
740 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
741 | ||
742 | /* No data transfer */ | |
385d70b4 | 743 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
744 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
745 | return; | |
746 | } | |
747 | ||
444786d7 | 748 | vha = sp->fcport->vha; |
67c2e93a | 749 | req = vha->req; |
2b6c0cee AV |
750 | |
751 | /* Set transfer direction */ | |
49fd462a | 752 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
753 | cmd_pkt->task_mgmt_flags = |
754 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
2be21fa2 | 755 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 756 | vha->qla_stats.output_requests++; |
49fd462a | 757 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
2b6c0cee AV |
758 | cmd_pkt->task_mgmt_flags = |
759 | __constant_cpu_to_le16(TMF_READ_DATA); | |
2be21fa2 | 760 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 761 | vha->qla_stats.input_requests++; |
49fd462a | 762 | } |
2b6c0cee AV |
763 | |
764 | /* One DSD is available in the Command Type 3 IOCB */ | |
765 | avail_dsds = 1; | |
766 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
767 | ||
768 | /* Load data segments */ | |
385d70b4 FT |
769 | |
770 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
771 | dma_addr_t sle_dma; | |
772 | cont_a64_entry_t *cont_pkt; | |
773 | ||
774 | /* Allocate additional continuation packets? */ | |
775 | if (avail_dsds == 0) { | |
776 | /* | |
777 | * Five DSDs are available in the Continuation | |
778 | * Type 1 IOCB. | |
779 | */ | |
0d2aa38e | 780 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
781 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
782 | avail_dsds = 5; | |
2b6c0cee | 783 | } |
385d70b4 FT |
784 | |
785 | sle_dma = sg_dma_address(sg); | |
786 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
787 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
788 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
789 | avail_dsds--; | |
2b6c0cee AV |
790 | } |
791 | } | |
792 | ||
bad75002 AE |
793 | struct fw_dif_context { |
794 | uint32_t ref_tag; | |
795 | uint16_t app_tag; | |
796 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
797 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
798 | }; | |
799 | ||
800 | /* | |
801 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
802 | * | |
803 | */ | |
804 | static inline void | |
e02587d7 | 805 | qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, |
bad75002 AE |
806 | unsigned int protcnt) |
807 | { | |
9ba56b95 | 808 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
809 | |
810 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 811 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
812 | /* |
813 | * No check for ql2xenablehba_err_chk, as it would be an | |
814 | * I/O error if hba tag generation is not done. | |
815 | */ | |
816 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
817 | (0xffffffff & scsi_get_lba(cmd))); | |
e02587d7 AE |
818 | |
819 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
820 | break; | |
821 | ||
8cb2049c AE |
822 | pkt->ref_tag_mask[0] = 0xff; |
823 | pkt->ref_tag_mask[1] = 0xff; | |
824 | pkt->ref_tag_mask[2] = 0xff; | |
825 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
826 | break; |
827 | ||
828 | /* | |
829 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
830 | * match LBA in CDB + N | |
831 | */ | |
832 | case SCSI_PROT_DIF_TYPE2: | |
e02587d7 AE |
833 | pkt->app_tag = __constant_cpu_to_le16(0); |
834 | pkt->app_tag_mask[0] = 0x0; | |
835 | pkt->app_tag_mask[1] = 0x0; | |
0c470874 AE |
836 | |
837 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
838 | (0xffffffff & scsi_get_lba(cmd))); | |
839 | ||
e02587d7 AE |
840 | if (!qla2x00_hba_err_chk_enabled(sp)) |
841 | break; | |
842 | ||
0c470874 AE |
843 | /* enable ALL bytes of the ref tag */ |
844 | pkt->ref_tag_mask[0] = 0xff; | |
845 | pkt->ref_tag_mask[1] = 0xff; | |
846 | pkt->ref_tag_mask[2] = 0xff; | |
847 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
848 | break; |
849 | ||
850 | /* For Type 3 protection: 16 bit GUARD only */ | |
851 | case SCSI_PROT_DIF_TYPE3: | |
852 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
853 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
854 | 0x00; | |
855 | break; | |
856 | ||
857 | /* | |
858 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
859 | * 16 bit app tag. | |
860 | */ | |
861 | case SCSI_PROT_DIF_TYPE1: | |
e02587d7 AE |
862 | pkt->ref_tag = cpu_to_le32((uint32_t) |
863 | (0xffffffff & scsi_get_lba(cmd))); | |
864 | pkt->app_tag = __constant_cpu_to_le16(0); | |
865 | pkt->app_tag_mask[0] = 0x0; | |
866 | pkt->app_tag_mask[1] = 0x0; | |
867 | ||
868 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
bad75002 AE |
869 | break; |
870 | ||
bad75002 AE |
871 | /* enable ALL bytes of the ref tag */ |
872 | pkt->ref_tag_mask[0] = 0xff; | |
873 | pkt->ref_tag_mask[1] = 0xff; | |
874 | pkt->ref_tag_mask[2] = 0xff; | |
875 | pkt->ref_tag_mask[3] = 0xff; | |
876 | break; | |
877 | } | |
bad75002 AE |
878 | } |
879 | ||
8cb2049c AE |
880 | struct qla2_sgx { |
881 | dma_addr_t dma_addr; /* OUT */ | |
882 | uint32_t dma_len; /* OUT */ | |
883 | ||
884 | uint32_t tot_bytes; /* IN */ | |
885 | struct scatterlist *cur_sg; /* IN */ | |
886 | ||
887 | /* for book keeping, bzero on initial invocation */ | |
888 | uint32_t bytes_consumed; | |
889 | uint32_t num_bytes; | |
890 | uint32_t tot_partial; | |
891 | ||
892 | /* for debugging */ | |
893 | uint32_t num_sg; | |
894 | srb_t *sp; | |
895 | }; | |
896 | ||
897 | static int | |
898 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
899 | uint32_t *partial) | |
900 | { | |
901 | struct scatterlist *sg; | |
902 | uint32_t cumulative_partial, sg_len; | |
903 | dma_addr_t sg_dma_addr; | |
904 | ||
905 | if (sgx->num_bytes == sgx->tot_bytes) | |
906 | return 0; | |
907 | ||
908 | sg = sgx->cur_sg; | |
909 | cumulative_partial = sgx->tot_partial; | |
910 | ||
911 | sg_dma_addr = sg_dma_address(sg); | |
912 | sg_len = sg_dma_len(sg); | |
913 | ||
914 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
915 | ||
916 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
917 | sgx->dma_len = (blk_sz - cumulative_partial); | |
918 | sgx->tot_partial = 0; | |
919 | sgx->num_bytes += blk_sz; | |
920 | *partial = 0; | |
921 | } else { | |
922 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
923 | sgx->tot_partial += sgx->dma_len; | |
924 | *partial = 1; | |
925 | } | |
926 | ||
927 | sgx->bytes_consumed += sgx->dma_len; | |
928 | ||
929 | if (sg_len == sgx->bytes_consumed) { | |
930 | sg = sg_next(sg); | |
931 | sgx->num_sg++; | |
932 | sgx->cur_sg = sg; | |
933 | sgx->bytes_consumed = 0; | |
934 | } | |
935 | ||
936 | return 1; | |
937 | } | |
938 | ||
939 | static int | |
940 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, | |
941 | uint32_t *dsd, uint16_t tot_dsds) | |
942 | { | |
943 | void *next_dsd; | |
944 | uint8_t avail_dsds = 0; | |
945 | uint32_t dsd_list_len; | |
946 | struct dsd_dma *dsd_ptr; | |
947 | struct scatterlist *sg_prot; | |
948 | uint32_t *cur_dsd = dsd; | |
949 | uint16_t used_dsds = tot_dsds; | |
950 | ||
951 | uint32_t prot_int; | |
952 | uint32_t partial; | |
953 | struct qla2_sgx sgx; | |
954 | dma_addr_t sle_dma; | |
955 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
9ba56b95 | 956 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
8cb2049c AE |
957 | |
958 | prot_int = cmd->device->sector_size; | |
959 | ||
960 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
9ba56b95 GM |
961 | sgx.tot_bytes = scsi_bufflen(cmd); |
962 | sgx.cur_sg = scsi_sglist(cmd); | |
8cb2049c AE |
963 | sgx.sp = sp; |
964 | ||
9ba56b95 | 965 | sg_prot = scsi_prot_sglist(cmd); |
8cb2049c AE |
966 | |
967 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
968 | ||
969 | sle_dma = sgx.dma_addr; | |
970 | sle_dma_len = sgx.dma_len; | |
971 | alloc_and_fill: | |
972 | /* Allocate additional continuation packets? */ | |
973 | if (avail_dsds == 0) { | |
974 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
975 | QLA_DSDS_PER_IOCB : used_dsds; | |
976 | dsd_list_len = (avail_dsds + 1) * 12; | |
977 | used_dsds -= avail_dsds; | |
978 | ||
979 | /* allocate tracking DS */ | |
980 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
981 | if (!dsd_ptr) | |
982 | return 1; | |
983 | ||
984 | /* allocate new list */ | |
985 | dsd_ptr->dsd_addr = next_dsd = | |
986 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
987 | &dsd_ptr->dsd_list_dma); | |
988 | ||
989 | if (!next_dsd) { | |
990 | /* | |
991 | * Need to cleanup only this dsd_ptr, rest | |
992 | * will be done by sp_free_dma() | |
993 | */ | |
994 | kfree(dsd_ptr); | |
995 | return 1; | |
996 | } | |
997 | ||
998 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 999 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
8cb2049c AE |
1000 | |
1001 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1002 | ||
1003 | /* add new list to cmd iocb or last list */ | |
1004 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1005 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1006 | *cur_dsd++ = dsd_list_len; | |
1007 | cur_dsd = (uint32_t *)next_dsd; | |
1008 | } | |
1009 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1010 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1011 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
1012 | avail_dsds--; | |
1013 | ||
1014 | if (partial == 0) { | |
1015 | /* Got a full protection interval */ | |
1016 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
1017 | sle_dma_len = 8; | |
bad75002 | 1018 | |
8cb2049c AE |
1019 | tot_prot_dma_len += sle_dma_len; |
1020 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
1021 | tot_prot_dma_len = 0; | |
1022 | sg_prot = sg_next(sg_prot); | |
1023 | } | |
1024 | ||
1025 | partial = 1; /* So as to not re-enter this block */ | |
1026 | goto alloc_and_fill; | |
1027 | } | |
1028 | } | |
1029 | /* Null termination */ | |
1030 | *cur_dsd++ = 0; | |
1031 | *cur_dsd++ = 0; | |
1032 | *cur_dsd++ = 0; | |
1033 | return 0; | |
1034 | } | |
5162cf0c | 1035 | |
bad75002 AE |
1036 | static int |
1037 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
1038 | uint16_t tot_dsds) | |
1039 | { | |
1040 | void *next_dsd; | |
1041 | uint8_t avail_dsds = 0; | |
1042 | uint32_t dsd_list_len; | |
1043 | struct dsd_dma *dsd_ptr; | |
1044 | struct scatterlist *sg; | |
1045 | uint32_t *cur_dsd = dsd; | |
1046 | int i; | |
1047 | uint16_t used_dsds = tot_dsds; | |
9ba56b95 | 1048 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 | 1049 | |
9ba56b95 | 1050 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
bad75002 AE |
1051 | dma_addr_t sle_dma; |
1052 | ||
1053 | /* Allocate additional continuation packets? */ | |
1054 | if (avail_dsds == 0) { | |
1055 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1056 | QLA_DSDS_PER_IOCB : used_dsds; | |
1057 | dsd_list_len = (avail_dsds + 1) * 12; | |
1058 | used_dsds -= avail_dsds; | |
1059 | ||
1060 | /* allocate tracking DS */ | |
1061 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1062 | if (!dsd_ptr) | |
1063 | return 1; | |
1064 | ||
1065 | /* allocate new list */ | |
1066 | dsd_ptr->dsd_addr = next_dsd = | |
1067 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1068 | &dsd_ptr->dsd_list_dma); | |
1069 | ||
1070 | if (!next_dsd) { | |
1071 | /* | |
1072 | * Need to cleanup only this dsd_ptr, rest | |
1073 | * will be done by sp_free_dma() | |
1074 | */ | |
1075 | kfree(dsd_ptr); | |
1076 | return 1; | |
1077 | } | |
1078 | ||
1079 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1080 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
1081 | |
1082 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1083 | ||
1084 | /* add new list to cmd iocb or last list */ | |
1085 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1086 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1087 | *cur_dsd++ = dsd_list_len; | |
1088 | cur_dsd = (uint32_t *)next_dsd; | |
1089 | } | |
1090 | sle_dma = sg_dma_address(sg); | |
9e522cd8 | 1091 | |
bad75002 AE |
1092 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1093 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1094 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1095 | avail_dsds--; | |
1096 | ||
bad75002 AE |
1097 | } |
1098 | /* Null termination */ | |
1099 | *cur_dsd++ = 0; | |
1100 | *cur_dsd++ = 0; | |
1101 | *cur_dsd++ = 0; | |
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | static int | |
1106 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
1107 | uint32_t *dsd, | |
1108 | uint16_t tot_dsds) | |
1109 | { | |
1110 | void *next_dsd; | |
1111 | uint8_t avail_dsds = 0; | |
1112 | uint32_t dsd_list_len; | |
1113 | struct dsd_dma *dsd_ptr; | |
1114 | struct scatterlist *sg; | |
1115 | int i; | |
1116 | struct scsi_cmnd *cmd; | |
1117 | uint32_t *cur_dsd = dsd; | |
1118 | uint16_t used_dsds = tot_dsds; | |
bad75002 | 1119 | |
9ba56b95 | 1120 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1121 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { |
1122 | dma_addr_t sle_dma; | |
1123 | ||
1124 | /* Allocate additional continuation packets? */ | |
1125 | if (avail_dsds == 0) { | |
1126 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1127 | QLA_DSDS_PER_IOCB : used_dsds; | |
1128 | dsd_list_len = (avail_dsds + 1) * 12; | |
1129 | used_dsds -= avail_dsds; | |
1130 | ||
1131 | /* allocate tracking DS */ | |
1132 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1133 | if (!dsd_ptr) | |
1134 | return 1; | |
1135 | ||
1136 | /* allocate new list */ | |
1137 | dsd_ptr->dsd_addr = next_dsd = | |
1138 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1139 | &dsd_ptr->dsd_list_dma); | |
1140 | ||
1141 | if (!next_dsd) { | |
1142 | /* | |
1143 | * Need to cleanup only this dsd_ptr, rest | |
1144 | * will be done by sp_free_dma() | |
1145 | */ | |
1146 | kfree(dsd_ptr); | |
1147 | return 1; | |
1148 | } | |
1149 | ||
1150 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1151 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
1152 | |
1153 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1154 | ||
1155 | /* add new list to cmd iocb or last list */ | |
1156 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1157 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1158 | *cur_dsd++ = dsd_list_len; | |
1159 | cur_dsd = (uint32_t *)next_dsd; | |
1160 | } | |
1161 | sle_dma = sg_dma_address(sg); | |
9e522cd8 | 1162 | |
bad75002 AE |
1163 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1164 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1165 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1166 | ||
bad75002 AE |
1167 | avail_dsds--; |
1168 | } | |
1169 | /* Null termination */ | |
1170 | *cur_dsd++ = 0; | |
1171 | *cur_dsd++ = 0; | |
1172 | *cur_dsd++ = 0; | |
1173 | return 0; | |
1174 | } | |
1175 | ||
1176 | /** | |
1177 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1178 | * Type 6 IOCB types. | |
1179 | * | |
1180 | * @sp: SRB command to process | |
1181 | * @cmd_pkt: Command type 3 IOCB | |
1182 | * @tot_dsds: Total number of segments to transfer | |
1183 | */ | |
1184 | static inline int | |
1185 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1186 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1187 | { | |
1188 | uint32_t *cur_dsd, *fcp_dl; | |
1189 | scsi_qla_host_t *vha; | |
1190 | struct scsi_cmnd *cmd; | |
bad75002 | 1191 | int sgc; |
8cb2049c | 1192 | uint32_t total_bytes = 0; |
bad75002 AE |
1193 | uint32_t data_bytes; |
1194 | uint32_t dif_bytes; | |
1195 | uint8_t bundling = 1; | |
1196 | uint16_t blk_size; | |
1197 | uint8_t *clr_ptr; | |
1198 | struct crc_context *crc_ctx_pkt = NULL; | |
1199 | struct qla_hw_data *ha; | |
1200 | uint8_t additional_fcpcdb_len; | |
1201 | uint16_t fcp_cmnd_len; | |
1202 | struct fcp_cmnd *fcp_cmnd; | |
1203 | dma_addr_t crc_ctx_dma; | |
ff2fc42e | 1204 | char tag[2]; |
bad75002 | 1205 | |
9ba56b95 | 1206 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1207 | |
1208 | sgc = 0; | |
1209 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1210 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1211 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1212 | ||
7c3df132 SK |
1213 | vha = sp->fcport->vha; |
1214 | ha = vha->hw; | |
1215 | ||
bad75002 AE |
1216 | /* No data transfer */ |
1217 | data_bytes = scsi_bufflen(cmd); | |
1218 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1219 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1220 | return QLA_SUCCESS; | |
1221 | } | |
1222 | ||
c6d39e23 | 1223 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
bad75002 AE |
1224 | |
1225 | /* Set transfer direction */ | |
1226 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1227 | cmd_pkt->control_flags = | |
1228 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1229 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1230 | cmd_pkt->control_flags = | |
1231 | __constant_cpu_to_le16(CF_READ_DATA); | |
1232 | } | |
1233 | ||
9ba56b95 GM |
1234 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || |
1235 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || | |
1236 | (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || | |
1237 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1238 | bundling = 0; |
1239 | ||
1240 | /* Allocate CRC context from global pool */ | |
9ba56b95 GM |
1241 | crc_ctx_pkt = sp->u.scmd.ctx = |
1242 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
bad75002 AE |
1243 | |
1244 | if (!crc_ctx_pkt) | |
1245 | goto crc_queuing_error; | |
1246 | ||
1247 | /* Zero out CTX area. */ | |
1248 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1249 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1250 | ||
1251 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1252 | ||
1253 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1254 | ||
1255 | /* Set handle */ | |
1256 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1257 | ||
1258 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1259 | ||
e02587d7 | 1260 | qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) |
bad75002 AE |
1261 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); |
1262 | ||
1263 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1264 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1265 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1266 | ||
1267 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1268 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1269 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1270 | if ((cmd->cmd_len % 4) != 0) { | |
1271 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1272 | goto crc_queuing_error; | |
1273 | } | |
1274 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1275 | } else { | |
1276 | additional_fcpcdb_len = 0; | |
1277 | fcp_cmnd_len = 12 + 16 + 4; | |
1278 | } | |
1279 | ||
1280 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1281 | ||
1282 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1283 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1284 | fcp_cmnd->additional_cdb_len |= 1; | |
1285 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1286 | fcp_cmnd->additional_cdb_len |= 2; | |
1287 | ||
9ba56b95 | 1288 | int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); |
bad75002 AE |
1289 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
1290 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1291 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1292 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1293 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1294 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1295 | fcp_cmnd->task_management = 0; |
bad75002 | 1296 | |
ff2fc42e AV |
1297 | /* |
1298 | * Update tagged queuing modifier if using command tag queuing | |
1299 | */ | |
1300 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1301 | switch (tag[0]) { | |
1302 | case HEAD_OF_QUEUE_TAG: | |
1303 | fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; | |
1304 | break; | |
1305 | case ORDERED_QUEUE_TAG: | |
1306 | fcp_cmnd->task_attribute = TSK_ORDERED; | |
1307 | break; | |
1308 | default: | |
c3ccb1d7 | 1309 | fcp_cmnd->task_attribute = TSK_SIMPLE; |
ff2fc42e AV |
1310 | break; |
1311 | } | |
1312 | } else { | |
c3ccb1d7 | 1313 | fcp_cmnd->task_attribute = TSK_SIMPLE; |
ff2fc42e AV |
1314 | } |
1315 | ||
bad75002 AE |
1316 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1317 | ||
bad75002 | 1318 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1319 | dif_bytes = 0; |
1320 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1321 | dif_bytes = (data_bytes / blk_size) * 8; |
1322 | ||
9ba56b95 | 1323 | switch (scsi_get_prot_op(GET_CMD_SP(sp))) { |
8cb2049c AE |
1324 | case SCSI_PROT_READ_INSERT: |
1325 | case SCSI_PROT_WRITE_STRIP: | |
1326 | total_bytes = data_bytes; | |
1327 | data_bytes += dif_bytes; | |
1328 | break; | |
1329 | ||
1330 | case SCSI_PROT_READ_STRIP: | |
1331 | case SCSI_PROT_WRITE_INSERT: | |
1332 | case SCSI_PROT_READ_PASS: | |
1333 | case SCSI_PROT_WRITE_PASS: | |
1334 | total_bytes = data_bytes + dif_bytes; | |
1335 | break; | |
1336 | default: | |
1337 | BUG(); | |
bad75002 AE |
1338 | } |
1339 | ||
e02587d7 | 1340 | if (!qla2x00_hba_err_chk_enabled(sp)) |
bad75002 | 1341 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
9e522cd8 AE |
1342 | /* HBA error checking enabled */ |
1343 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
1344 | if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) | |
1345 | || (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1346 | SCSI_PROT_DIF_TYPE2)) | |
1347 | fw_prot_opts |= BIT_10; | |
1348 | else if (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1349 | SCSI_PROT_DIF_TYPE3) | |
1350 | fw_prot_opts |= BIT_11; | |
1351 | } | |
bad75002 AE |
1352 | |
1353 | if (!bundling) { | |
1354 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1355 | } else { | |
1356 | /* | |
1357 | * Configure Bundling if we need to fetch interlaving | |
1358 | * protection PCI accesses | |
1359 | */ | |
1360 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1361 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1362 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1363 | tot_prot_dsds); | |
1364 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1365 | } | |
1366 | ||
1367 | /* Finish the common fields of CRC pkt */ | |
1368 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1369 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1370 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1371 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1372 | /* Fibre channel byte count */ | |
1373 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1374 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1375 | additional_fcpcdb_len); | |
1376 | *fcp_dl = htonl(total_bytes); | |
1377 | ||
0c470874 | 1378 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1379 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1380 | return QLA_SUCCESS; | |
1381 | } | |
bad75002 AE |
1382 | /* Walks data segments */ |
1383 | ||
1384 | cmd_pkt->control_flags |= | |
1385 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1386 | |
1387 | if (!bundling && tot_prot_dsds) { | |
1388 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
1389 | cur_dsd, tot_dsds)) | |
1390 | goto crc_queuing_error; | |
1391 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
bad75002 AE |
1392 | (tot_dsds - tot_prot_dsds))) |
1393 | goto crc_queuing_error; | |
1394 | ||
1395 | if (bundling && tot_prot_dsds) { | |
1396 | /* Walks dif segments */ | |
bad75002 AE |
1397 | cmd_pkt->control_flags |= |
1398 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1399 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1400 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1401 | tot_prot_dsds)) | |
1402 | goto crc_queuing_error; | |
1403 | } | |
1404 | return QLA_SUCCESS; | |
1405 | ||
1406 | crc_queuing_error: | |
bad75002 AE |
1407 | /* Cleanup will be performed by the caller */ |
1408 | ||
1409 | return QLA_FUNCTION_FAILED; | |
1410 | } | |
2b6c0cee AV |
1411 | |
1412 | /** | |
1413 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1414 | * @sp: command to send to the ISP | |
1415 | * | |
cc3ef7bc | 1416 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1417 | */ |
1418 | int | |
1419 | qla24xx_start_scsi(srb_t *sp) | |
1420 | { | |
385d70b4 | 1421 | int ret, nseg; |
2b6c0cee | 1422 | unsigned long flags; |
2b6c0cee AV |
1423 | uint32_t *clr_ptr; |
1424 | uint32_t index; | |
1425 | uint32_t handle; | |
1426 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1427 | uint16_t cnt; |
1428 | uint16_t req_cnt; | |
1429 | uint16_t tot_dsds; | |
73208dfd AC |
1430 | struct req_que *req = NULL; |
1431 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1432 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
444786d7 | 1433 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1434 | struct qla_hw_data *ha = vha->hw; |
ff2fc42e | 1435 | char tag[2]; |
2b6c0cee AV |
1436 | |
1437 | /* Setup device pointers. */ | |
1438 | ret = 0; | |
73208dfd | 1439 | |
59e0b8b0 AC |
1440 | qla25xx_set_que(sp, &rsp); |
1441 | req = vha->req; | |
73208dfd | 1442 | |
2b6c0cee AV |
1443 | /* So we know we haven't pci_map'ed anything yet */ |
1444 | tot_dsds = 0; | |
1445 | ||
1446 | /* Send marker if required */ | |
e315cd28 | 1447 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1448 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1449 | QLA_SUCCESS) | |
2b6c0cee | 1450 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1451 | vha->marker_needed = 0; |
2b6c0cee AV |
1452 | } |
1453 | ||
1454 | /* Acquire ring specific lock */ | |
e315cd28 | 1455 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1456 | |
1457 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1458 | handle = req->current_outstanding_cmd; |
8d93f550 | 1459 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
2b6c0cee | 1460 | handle++; |
8d93f550 | 1461 | if (handle == req->num_outstanding_cmds) |
2b6c0cee | 1462 | handle = 1; |
e315cd28 | 1463 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1464 | break; |
1465 | } | |
8d93f550 | 1466 | if (index == req->num_outstanding_cmds) |
2b6c0cee AV |
1467 | goto queuing_error; |
1468 | ||
1469 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1470 | if (scsi_sg_count(cmd)) { |
1471 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1472 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1473 | if (unlikely(!nseg)) | |
2b6c0cee | 1474 | goto queuing_error; |
2c3dfe3f SJ |
1475 | } else |
1476 | nseg = 0; | |
1477 | ||
385d70b4 | 1478 | tot_dsds = nseg; |
7c3df132 | 1479 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1480 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1481 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1482 | |
e315cd28 AC |
1483 | if (req->ring_index < cnt) |
1484 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1485 | else |
e315cd28 AC |
1486 | req->cnt = req->length - |
1487 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1488 | if (req->cnt < (req_cnt + 2)) |
1489 | goto queuing_error; | |
2b6c0cee | 1490 | } |
2b6c0cee AV |
1491 | |
1492 | /* Build command packet. */ | |
e315cd28 AC |
1493 | req->current_outstanding_cmd = handle; |
1494 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1495 | sp->handle = handle; |
9ba56b95 | 1496 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1497 | req->cnt -= req_cnt; |
2b6c0cee | 1498 | |
e315cd28 | 1499 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1500 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1501 | |
1502 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1503 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1504 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1505 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1506 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1507 | ||
1508 | /* Set NPORT-ID and LUN number*/ | |
1509 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1510 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1511 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1512 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1513 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
2b6c0cee | 1514 | |
9ba56b95 | 1515 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1516 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1517 | |
ff2fc42e AV |
1518 | /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
1519 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1520 | switch (tag[0]) { | |
1521 | case HEAD_OF_QUEUE_TAG: | |
1522 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
1523 | break; | |
1524 | case ORDERED_QUEUE_TAG: | |
1525 | cmd_pkt->task = TSK_ORDERED; | |
1526 | break; | |
c3ccb1d7 SK |
1527 | default: |
1528 | cmd_pkt->task = TSK_SIMPLE; | |
1529 | break; | |
ff2fc42e | 1530 | } |
c3ccb1d7 SK |
1531 | } else { |
1532 | cmd_pkt->task = TSK_SIMPLE; | |
ff2fc42e AV |
1533 | } |
1534 | ||
2b6c0cee AV |
1535 | /* Load SCSI command packet. */ |
1536 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1537 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1538 | ||
385d70b4 | 1539 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1540 | |
1541 | /* Build IOCB segments */ | |
1542 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1543 | ||
1544 | /* Set total data segment count. */ | |
1545 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1546 | /* Specify response queue number where completion should happen */ |
1547 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1548 | wmb(); |
2b6c0cee | 1549 | /* Adjust ring index. */ |
e315cd28 AC |
1550 | req->ring_index++; |
1551 | if (req->ring_index == req->length) { | |
1552 | req->ring_index = 0; | |
1553 | req->ring_ptr = req->ring; | |
2b6c0cee | 1554 | } else |
e315cd28 | 1555 | req->ring_ptr++; |
2b6c0cee AV |
1556 | |
1557 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1558 | |
1559 | /* Set chip new ring index. */ | |
08029990 AV |
1560 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1561 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1562 | |
4fdfefe5 | 1563 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1564 | if (vha->flags.process_response_queue && |
73208dfd | 1565 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1566 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1567 | |
e315cd28 | 1568 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1569 | return QLA_SUCCESS; |
1570 | ||
1571 | queuing_error: | |
385d70b4 FT |
1572 | if (tot_dsds) |
1573 | scsi_dma_unmap(cmd); | |
1574 | ||
e315cd28 | 1575 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1576 | |
1577 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1578 | } |
68ca949c | 1579 | |
bad75002 AE |
1580 | /** |
1581 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1582 | * @sp: command to send to the ISP | |
1583 | * | |
1584 | * Returns non-zero if a failure occurred, else zero. | |
1585 | */ | |
1586 | int | |
1587 | qla24xx_dif_start_scsi(srb_t *sp) | |
1588 | { | |
1589 | int nseg; | |
1590 | unsigned long flags; | |
1591 | uint32_t *clr_ptr; | |
1592 | uint32_t index; | |
1593 | uint32_t handle; | |
1594 | uint16_t cnt; | |
1595 | uint16_t req_cnt = 0; | |
1596 | uint16_t tot_dsds; | |
1597 | uint16_t tot_prot_dsds; | |
1598 | uint16_t fw_prot_opts = 0; | |
1599 | struct req_que *req = NULL; | |
1600 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1601 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
1602 | struct scsi_qla_host *vha = sp->fcport->vha; |
1603 | struct qla_hw_data *ha = vha->hw; | |
1604 | struct cmd_type_crc_2 *cmd_pkt; | |
1605 | uint32_t status = 0; | |
1606 | ||
1607 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1608 | ||
0c470874 AE |
1609 | /* Only process protection or >16 cdb in this routine */ |
1610 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1611 | if (cmd->cmd_len <= 16) | |
1612 | return qla24xx_start_scsi(sp); | |
1613 | } | |
bad75002 AE |
1614 | |
1615 | /* Setup device pointers. */ | |
1616 | ||
1617 | qla25xx_set_que(sp, &rsp); | |
1618 | req = vha->req; | |
1619 | ||
1620 | /* So we know we haven't pci_map'ed anything yet */ | |
1621 | tot_dsds = 0; | |
1622 | ||
1623 | /* Send marker if required */ | |
1624 | if (vha->marker_needed != 0) { | |
1625 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1626 | QLA_SUCCESS) | |
1627 | return QLA_FUNCTION_FAILED; | |
1628 | vha->marker_needed = 0; | |
1629 | } | |
1630 | ||
1631 | /* Acquire ring specific lock */ | |
1632 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1633 | ||
1634 | /* Check for room in outstanding command list. */ | |
1635 | handle = req->current_outstanding_cmd; | |
8d93f550 | 1636 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
bad75002 | 1637 | handle++; |
8d93f550 | 1638 | if (handle == req->num_outstanding_cmds) |
bad75002 AE |
1639 | handle = 1; |
1640 | if (!req->outstanding_cmds[handle]) | |
1641 | break; | |
1642 | } | |
1643 | ||
8d93f550 | 1644 | if (index == req->num_outstanding_cmds) |
bad75002 AE |
1645 | goto queuing_error; |
1646 | ||
1647 | /* Compute number of required data segments */ | |
1648 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1649 | if (scsi_sg_count(cmd)) { | |
1650 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1651 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1652 | if (unlikely(!nseg)) | |
1653 | goto queuing_error; | |
1654 | else | |
1655 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1656 | |
1657 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1658 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1659 | struct qla2_sgx sgx; | |
1660 | uint32_t partial; | |
1661 | ||
1662 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1663 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1664 | sgx.cur_sg = scsi_sglist(cmd); | |
1665 | sgx.sp = sp; | |
1666 | ||
1667 | nseg = 0; | |
1668 | while (qla24xx_get_one_block_sg( | |
1669 | cmd->device->sector_size, &sgx, &partial)) | |
1670 | nseg++; | |
1671 | } | |
bad75002 AE |
1672 | } else |
1673 | nseg = 0; | |
1674 | ||
1675 | /* number of required data segments */ | |
1676 | tot_dsds = nseg; | |
1677 | ||
1678 | /* Compute number of required protection segments */ | |
1679 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1680 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1681 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1682 | if (unlikely(!nseg)) | |
1683 | goto queuing_error; | |
1684 | else | |
1685 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1686 | |
1687 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1688 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1689 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1690 | } | |
bad75002 AE |
1691 | } else { |
1692 | nseg = 0; | |
1693 | } | |
1694 | ||
1695 | req_cnt = 1; | |
1696 | /* Total Data and protection sg segment(s) */ | |
1697 | tot_prot_dsds = nseg; | |
1698 | tot_dsds += nseg; | |
1699 | if (req->cnt < (req_cnt + 2)) { | |
1700 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1701 | ||
1702 | if (req->ring_index < cnt) | |
1703 | req->cnt = cnt - req->ring_index; | |
1704 | else | |
1705 | req->cnt = req->length - | |
1706 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1707 | if (req->cnt < (req_cnt + 2)) |
1708 | goto queuing_error; | |
bad75002 AE |
1709 | } |
1710 | ||
bad75002 AE |
1711 | status |= QDSS_GOT_Q_SPACE; |
1712 | ||
1713 | /* Build header part of command packet (excluding the OPCODE). */ | |
1714 | req->current_outstanding_cmd = handle; | |
1715 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1716 | sp->handle = handle; |
9ba56b95 | 1717 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
bad75002 AE |
1718 | req->cnt -= req_cnt; |
1719 | ||
1720 | /* Fill-in common area */ | |
1721 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1722 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1723 | ||
1724 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1725 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1726 | ||
1727 | /* Set NPORT-ID and LUN number*/ | |
1728 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1729 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1730 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1731 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1732 | ||
9ba56b95 | 1733 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
bad75002 AE |
1734 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
1735 | ||
1736 | /* Total Data and protection segment(s) */ | |
1737 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1738 | ||
1739 | /* Build IOCB segments and adjust for data protection segments */ | |
1740 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1741 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1742 | QLA_SUCCESS) | |
1743 | goto queuing_error; | |
1744 | ||
1745 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1746 | /* Specify response queue number where completion should happen */ | |
1747 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1748 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1749 | wmb(); | |
1750 | ||
1751 | /* Adjust ring index. */ | |
1752 | req->ring_index++; | |
1753 | if (req->ring_index == req->length) { | |
1754 | req->ring_index = 0; | |
1755 | req->ring_ptr = req->ring; | |
1756 | } else | |
1757 | req->ring_ptr++; | |
1758 | ||
1759 | /* Set chip new ring index. */ | |
1760 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1761 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1762 | ||
1763 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1764 | if (vha->flags.process_response_queue && | |
1765 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1766 | qla24xx_process_response_queue(vha, rsp); | |
1767 | ||
1768 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1769 | ||
1770 | return QLA_SUCCESS; | |
1771 | ||
1772 | queuing_error: | |
1773 | if (status & QDSS_GOT_Q_SPACE) { | |
1774 | req->outstanding_cmds[handle] = NULL; | |
1775 | req->cnt += req_cnt; | |
1776 | } | |
1777 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1778 | ||
1779 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1780 | return QLA_FUNCTION_FAILED; |
1781 | } | |
1782 | ||
1783 | ||
59e0b8b0 | 1784 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c | 1785 | { |
9ba56b95 | 1786 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
68ca949c AC |
1787 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1788 | int affinity = cmd->request->cpu; | |
1789 | ||
7163ea81 | 1790 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1791 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1792 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1793 | else |
68ca949c | 1794 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1795 | } |
ac280b67 AV |
1796 | |
1797 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1798 | void * |
1799 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1800 | { |
ac280b67 AV |
1801 | struct qla_hw_data *ha = vha->hw; |
1802 | struct req_que *req = ha->req_q_map[0]; | |
1803 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1804 | uint32_t index, handle; | |
1805 | request_t *pkt; | |
1806 | uint16_t cnt, req_cnt; | |
1807 | ||
1808 | pkt = NULL; | |
1809 | req_cnt = 1; | |
d94d10e7 GM |
1810 | handle = 0; |
1811 | ||
1812 | if (!sp) | |
1813 | goto skip_cmd_array; | |
ac280b67 AV |
1814 | |
1815 | /* Check for room in outstanding command list. */ | |
1816 | handle = req->current_outstanding_cmd; | |
4b4f30cc | 1817 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
ac280b67 | 1818 | handle++; |
8d93f550 | 1819 | if (handle == req->num_outstanding_cmds) |
ac280b67 AV |
1820 | handle = 1; |
1821 | if (!req->outstanding_cmds[handle]) | |
1822 | break; | |
1823 | } | |
8d93f550 | 1824 | if (index == req->num_outstanding_cmds) { |
7c3df132 | 1825 | ql_log(ql_log_warn, vha, 0x700b, |
d6a03581 | 1826 | "No room on outstanding cmd array.\n"); |
ac280b67 | 1827 | goto queuing_error; |
7c3df132 | 1828 | } |
ac280b67 | 1829 | |
d94d10e7 GM |
1830 | /* Prep command array. */ |
1831 | req->current_outstanding_cmd = handle; | |
1832 | req->outstanding_cmds[handle] = sp; | |
1833 | sp->handle = handle; | |
1834 | ||
5780790e | 1835 | /* Adjust entry-counts as needed. */ |
9ba56b95 GM |
1836 | if (sp->type != SRB_SCSI_CMD) |
1837 | req_cnt = sp->iocbs; | |
5780790e | 1838 | |
d94d10e7 | 1839 | skip_cmd_array: |
ac280b67 AV |
1840 | /* Check for room on request queue. */ |
1841 | if (req->cnt < req_cnt) { | |
f73cb695 | 1842 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) |
ac280b67 | 1843 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); |
7ec0effd | 1844 | else if (IS_P3P_TYPE(ha)) |
d94d10e7 | 1845 | cnt = RD_REG_DWORD(®->isp82.req_q_out); |
ac280b67 AV |
1846 | else if (IS_FWI2_CAPABLE(ha)) |
1847 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
8ae6d9c7 GM |
1848 | else if (IS_QLAFX00(ha)) |
1849 | cnt = RD_REG_DWORD(®->ispfx00.req_q_out); | |
ac280b67 AV |
1850 | else |
1851 | cnt = qla2x00_debounce_register( | |
1852 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1853 | ||
1854 | if (req->ring_index < cnt) | |
1855 | req->cnt = cnt - req->ring_index; | |
1856 | else | |
1857 | req->cnt = req->length - | |
1858 | (req->ring_index - cnt); | |
1859 | } | |
1860 | if (req->cnt < req_cnt) | |
1861 | goto queuing_error; | |
1862 | ||
1863 | /* Prep packet */ | |
ac280b67 | 1864 | req->cnt -= req_cnt; |
ac280b67 AV |
1865 | pkt = req->ring_ptr; |
1866 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
8ae6d9c7 | 1867 | if (IS_QLAFX00(ha)) { |
1f8deefe SK |
1868 | WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt); |
1869 | WRT_REG_WORD((void __iomem *)&pkt->handle, handle); | |
8ae6d9c7 GM |
1870 | } else { |
1871 | pkt->entry_count = req_cnt; | |
1872 | pkt->handle = handle; | |
1873 | } | |
ac280b67 AV |
1874 | |
1875 | queuing_error: | |
1876 | return pkt; | |
1877 | } | |
1878 | ||
ac280b67 AV |
1879 | static void |
1880 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1881 | { | |
9ba56b95 | 1882 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1883 | |
1884 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1885 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1886 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1887 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1888 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1889 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1890 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1891 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1892 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1893 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1894 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1895 | } |
1896 | ||
1897 | static void | |
1898 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1899 | { | |
1900 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
9ba56b95 | 1901 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1902 | uint16_t opts; |
1903 | ||
b963752f | 1904 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1905 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1906 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1907 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1908 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1909 | if (HAS_EXTENDED_IDS(ha)) { |
1910 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1911 | mbx->mb10 = cpu_to_le16(opts); | |
1912 | } else { | |
1913 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1914 | } | |
1915 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1916 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1917 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1918 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1919 | } |
1920 | ||
1921 | static void | |
1922 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1923 | { | |
1924 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1925 | logio->control_flags = | |
1926 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1927 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1928 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1929 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1930 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1931 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1932 | } |
1933 | ||
1934 | static void | |
1935 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1936 | { | |
1937 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1938 | ||
b963752f | 1939 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1940 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1941 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1942 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1943 | cpu_to_le16(sp->fcport->loop_id): | |
1944 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1945 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1946 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1947 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1948 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1949 | /* Implicit: mbx->mbx10 = 0. */ |
1950 | } | |
1951 | ||
5ff1d584 AV |
1952 | static void |
1953 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1954 | { | |
1955 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1956 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1957 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 1958 | logio->vp_index = sp->fcport->vha->vp_idx; |
5ff1d584 AV |
1959 | } |
1960 | ||
1961 | static void | |
1962 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1963 | { | |
1964 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1965 | ||
1966 | mbx->entry_type = MBX_IOCB_TYPE; | |
1967 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1968 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1969 | if (HAS_EXTENDED_IDS(ha)) { | |
1970 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1971 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1972 | } else { | |
1973 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1974 | } | |
1975 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1976 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1977 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1978 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
c6d39e23 | 1979 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
5ff1d584 AV |
1980 | } |
1981 | ||
3822263e MI |
1982 | static void |
1983 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
1984 | { | |
1985 | uint32_t flags; | |
1986 | unsigned int lun; | |
1987 | struct fc_port *fcport = sp->fcport; | |
1988 | scsi_qla_host_t *vha = fcport->vha; | |
1989 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 1990 | struct srb_iocb *iocb = &sp->u.iocb_cmd; |
3822263e MI |
1991 | struct req_que *req = vha->req; |
1992 | ||
1993 | flags = iocb->u.tmf.flags; | |
1994 | lun = iocb->u.tmf.lun; | |
1995 | ||
1996 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
1997 | tsk->entry_count = 1; | |
1998 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
1999 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
2000 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
2001 | tsk->control_flags = cpu_to_le32(flags); | |
2002 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
2003 | tsk->port_id[1] = fcport->d_id.b.area; | |
2004 | tsk->port_id[2] = fcport->d_id.b.domain; | |
c6d39e23 | 2005 | tsk->vp_index = fcport->vha->vp_idx; |
3822263e MI |
2006 | |
2007 | if (flags == TCF_LUN_RESET) { | |
2008 | int_to_scsilun(lun, &tsk->lun); | |
2009 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
2010 | sizeof(tsk->lun)); | |
2011 | } | |
2012 | } | |
2013 | ||
9a069e19 GM |
2014 | static void |
2015 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
2016 | { | |
9ba56b95 | 2017 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2018 | |
2019 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
2020 | els_iocb->entry_count = 1; | |
2021 | els_iocb->sys_define = 0; | |
2022 | els_iocb->entry_status = 0; | |
2023 | els_iocb->handle = sp->handle; | |
2024 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2025 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
c6d39e23 | 2026 | els_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2027 | els_iocb->sof_type = EST_SOFI3; |
2028 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2029 | ||
4916392b | 2030 | els_iocb->opcode = |
9ba56b95 | 2031 | sp->type == SRB_ELS_CMD_RPT ? |
4916392b MI |
2032 | bsg_job->request->rqst_data.r_els.els_code : |
2033 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
2034 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
2035 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2036 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2037 | els_iocb->control_flags = 0; | |
2038 | els_iocb->rx_byte_count = | |
2039 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2040 | els_iocb->tx_byte_count = | |
2041 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2042 | ||
2043 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2044 | (bsg_job->request_payload.sg_list))); | |
2045 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2046 | (bsg_job->request_payload.sg_list))); | |
2047 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2048 | (bsg_job->request_payload.sg_list)); | |
2049 | ||
2050 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2051 | (bsg_job->reply_payload.sg_list))); | |
2052 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2053 | (bsg_job->reply_payload.sg_list))); | |
2054 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2055 | (bsg_job->reply_payload.sg_list)); | |
fabbb8df JC |
2056 | |
2057 | sp->fcport->vha->qla_stats.control_requests++; | |
9a069e19 GM |
2058 | } |
2059 | ||
9bc4f4fb HZ |
2060 | static void |
2061 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2062 | { | |
2063 | uint16_t avail_dsds; | |
2064 | uint32_t *cur_dsd; | |
2065 | struct scatterlist *sg; | |
2066 | int index; | |
2067 | uint16_t tot_dsds; | |
2068 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2069 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 2070 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9bc4f4fb HZ |
2071 | int loop_iterartion = 0; |
2072 | int cont_iocb_prsnt = 0; | |
2073 | int entry_count = 1; | |
2074 | ||
2075 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2076 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2077 | ct_iocb->entry_status = 0; | |
2078 | ct_iocb->handle1 = sp->handle; | |
2079 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2080 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2081 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2082 | ct_iocb->timeout = 0; | |
2083 | ct_iocb->cmd_dsd_count = | |
2084 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2085 | ct_iocb->total_dsd_count = | |
2086 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2087 | ct_iocb->req_bytecount = | |
2088 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2089 | ct_iocb->rsp_bytecount = | |
2090 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2091 | ||
2092 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2093 | (bsg_job->request_payload.sg_list))); | |
2094 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2095 | (bsg_job->request_payload.sg_list))); | |
2096 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2097 | ||
2098 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2099 | (bsg_job->reply_payload.sg_list))); | |
2100 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2101 | (bsg_job->reply_payload.sg_list))); | |
2102 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2103 | ||
2104 | avail_dsds = 1; | |
2105 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2106 | index = 0; | |
2107 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2108 | ||
2109 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2110 | dma_addr_t sle_dma; | |
2111 | cont_a64_entry_t *cont_pkt; | |
2112 | ||
2113 | /* Allocate additional continuation packets? */ | |
2114 | if (avail_dsds == 0) { | |
2115 | /* | |
2116 | * Five DSDs are available in the Cont. | |
2117 | * Type 1 IOCB. | |
2118 | */ | |
0d2aa38e GM |
2119 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2120 | vha->hw->req_q_map[0]); | |
9bc4f4fb HZ |
2121 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2122 | avail_dsds = 5; | |
2123 | cont_iocb_prsnt = 1; | |
2124 | entry_count++; | |
2125 | } | |
2126 | ||
2127 | sle_dma = sg_dma_address(sg); | |
2128 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2129 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2130 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2131 | loop_iterartion++; | |
2132 | avail_dsds--; | |
2133 | } | |
2134 | ct_iocb->entry_count = entry_count; | |
fabbb8df JC |
2135 | |
2136 | sp->fcport->vha->qla_stats.control_requests++; | |
9bc4f4fb HZ |
2137 | } |
2138 | ||
9a069e19 GM |
2139 | static void |
2140 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2141 | { | |
2142 | uint16_t avail_dsds; | |
2143 | uint32_t *cur_dsd; | |
2144 | struct scatterlist *sg; | |
2145 | int index; | |
2146 | uint16_t tot_dsds; | |
2147 | scsi_qla_host_t *vha = sp->fcport->vha; | |
0d2aa38e | 2148 | struct qla_hw_data *ha = vha->hw; |
9ba56b95 | 2149 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2150 | int loop_iterartion = 0; |
2151 | int cont_iocb_prsnt = 0; | |
2152 | int entry_count = 1; | |
2153 | ||
2154 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2155 | ct_iocb->entry_status = 0; | |
2156 | ct_iocb->sys_define = 0; | |
2157 | ct_iocb->handle = sp->handle; | |
2158 | ||
2159 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 2160 | ct_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2161 | ct_iocb->comp_status = __constant_cpu_to_le16(0); |
2162 | ||
2163 | ct_iocb->cmd_dsd_count = | |
2164 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2165 | ct_iocb->timeout = 0; | |
2166 | ct_iocb->rsp_dsd_count = | |
2167 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2168 | ct_iocb->rsp_byte_count = | |
2169 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2170 | ct_iocb->cmd_byte_count = | |
2171 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2172 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2173 | (bsg_job->request_payload.sg_list))); | |
2174 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2175 | (bsg_job->request_payload.sg_list))); | |
2176 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2177 | (bsg_job->request_payload.sg_list)); | |
2178 | ||
2179 | avail_dsds = 1; | |
2180 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2181 | index = 0; | |
2182 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2183 | ||
2184 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2185 | dma_addr_t sle_dma; | |
2186 | cont_a64_entry_t *cont_pkt; | |
2187 | ||
2188 | /* Allocate additional continuation packets? */ | |
2189 | if (avail_dsds == 0) { | |
2190 | /* | |
2191 | * Five DSDs are available in the Cont. | |
2192 | * Type 1 IOCB. | |
2193 | */ | |
0d2aa38e GM |
2194 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2195 | ha->req_q_map[0]); | |
9a069e19 GM |
2196 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2197 | avail_dsds = 5; | |
2198 | cont_iocb_prsnt = 1; | |
2199 | entry_count++; | |
2200 | } | |
2201 | ||
2202 | sle_dma = sg_dma_address(sg); | |
2203 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2204 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2205 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2206 | loop_iterartion++; | |
2207 | avail_dsds--; | |
2208 | } | |
2209 | ct_iocb->entry_count = entry_count; | |
2210 | } | |
2211 | ||
5162cf0c GM |
2212 | /* |
2213 | * qla82xx_start_scsi() - Send a SCSI command to the ISP | |
2214 | * @sp: command to send to the ISP | |
2215 | * | |
2216 | * Returns non-zero if a failure occurred, else zero. | |
2217 | */ | |
2218 | int | |
2219 | qla82xx_start_scsi(srb_t *sp) | |
2220 | { | |
2221 | int ret, nseg; | |
2222 | unsigned long flags; | |
2223 | struct scsi_cmnd *cmd; | |
2224 | uint32_t *clr_ptr; | |
2225 | uint32_t index; | |
2226 | uint32_t handle; | |
2227 | uint16_t cnt; | |
2228 | uint16_t req_cnt; | |
2229 | uint16_t tot_dsds; | |
2230 | struct device_reg_82xx __iomem *reg; | |
2231 | uint32_t dbval; | |
2232 | uint32_t *fcp_dl; | |
2233 | uint8_t additional_cdb_len; | |
2234 | struct ct6_dsd *ctx; | |
2235 | struct scsi_qla_host *vha = sp->fcport->vha; | |
2236 | struct qla_hw_data *ha = vha->hw; | |
2237 | struct req_que *req = NULL; | |
2238 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 2239 | char tag[2]; |
5162cf0c GM |
2240 | |
2241 | /* Setup device pointers. */ | |
2242 | ret = 0; | |
2243 | reg = &ha->iobase->isp82; | |
9ba56b95 | 2244 | cmd = GET_CMD_SP(sp); |
5162cf0c GM |
2245 | req = vha->req; |
2246 | rsp = ha->rsp_q_map[0]; | |
2247 | ||
2248 | /* So we know we haven't pci_map'ed anything yet */ | |
2249 | tot_dsds = 0; | |
2250 | ||
2251 | dbval = 0x04 | (ha->portnum << 5); | |
2252 | ||
2253 | /* Send marker if required */ | |
2254 | if (vha->marker_needed != 0) { | |
2255 | if (qla2x00_marker(vha, req, | |
2256 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { | |
2257 | ql_log(ql_log_warn, vha, 0x300c, | |
2258 | "qla2x00_marker failed for cmd=%p.\n", cmd); | |
2259 | return QLA_FUNCTION_FAILED; | |
2260 | } | |
2261 | vha->marker_needed = 0; | |
2262 | } | |
2263 | ||
2264 | /* Acquire ring specific lock */ | |
2265 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2266 | ||
2267 | /* Check for room in outstanding command list. */ | |
2268 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2269 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
5162cf0c | 2270 | handle++; |
8d93f550 | 2271 | if (handle == req->num_outstanding_cmds) |
5162cf0c GM |
2272 | handle = 1; |
2273 | if (!req->outstanding_cmds[handle]) | |
2274 | break; | |
2275 | } | |
8d93f550 | 2276 | if (index == req->num_outstanding_cmds) |
5162cf0c GM |
2277 | goto queuing_error; |
2278 | ||
2279 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2280 | if (scsi_sg_count(cmd)) { | |
2281 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
2282 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
2283 | if (unlikely(!nseg)) | |
2284 | goto queuing_error; | |
2285 | } else | |
2286 | nseg = 0; | |
2287 | ||
2288 | tot_dsds = nseg; | |
2289 | ||
2290 | if (tot_dsds > ql2xshiftctondsd) { | |
2291 | struct cmd_type_6 *cmd_pkt; | |
2292 | uint16_t more_dsd_lists = 0; | |
2293 | struct dsd_dma *dsd_ptr; | |
2294 | uint16_t i; | |
2295 | ||
2296 | more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); | |
2297 | if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { | |
2298 | ql_dbg(ql_dbg_io, vha, 0x300d, | |
2299 | "Num of DSD list %d is than %d for cmd=%p.\n", | |
2300 | more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, | |
2301 | cmd); | |
2302 | goto queuing_error; | |
2303 | } | |
2304 | ||
2305 | if (more_dsd_lists <= ha->gbl_dsd_avail) | |
2306 | goto sufficient_dsds; | |
2307 | else | |
2308 | more_dsd_lists -= ha->gbl_dsd_avail; | |
2309 | ||
2310 | for (i = 0; i < more_dsd_lists; i++) { | |
2311 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
2312 | if (!dsd_ptr) { | |
2313 | ql_log(ql_log_fatal, vha, 0x300e, | |
2314 | "Failed to allocate memory for dsd_dma " | |
2315 | "for cmd=%p.\n", cmd); | |
2316 | goto queuing_error; | |
2317 | } | |
2318 | ||
2319 | dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, | |
2320 | GFP_ATOMIC, &dsd_ptr->dsd_list_dma); | |
2321 | if (!dsd_ptr->dsd_addr) { | |
2322 | kfree(dsd_ptr); | |
2323 | ql_log(ql_log_fatal, vha, 0x300f, | |
2324 | "Failed to allocate memory for dsd_addr " | |
2325 | "for cmd=%p.\n", cmd); | |
2326 | goto queuing_error; | |
2327 | } | |
2328 | list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); | |
2329 | ha->gbl_dsd_avail++; | |
2330 | } | |
2331 | ||
2332 | sufficient_dsds: | |
2333 | req_cnt = 1; | |
2334 | ||
2335 | if (req->cnt < (req_cnt + 2)) { | |
2336 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2337 | ®->req_q_out[0]); | |
2338 | if (req->ring_index < cnt) | |
2339 | req->cnt = cnt - req->ring_index; | |
2340 | else | |
2341 | req->cnt = req->length - | |
2342 | (req->ring_index - cnt); | |
a6eb3c9f CL |
2343 | if (req->cnt < (req_cnt + 2)) |
2344 | goto queuing_error; | |
5162cf0c GM |
2345 | } |
2346 | ||
9ba56b95 GM |
2347 | ctx = sp->u.scmd.ctx = |
2348 | mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); | |
2349 | if (!ctx) { | |
5162cf0c GM |
2350 | ql_log(ql_log_fatal, vha, 0x3010, |
2351 | "Failed to allocate ctx for cmd=%p.\n", cmd); | |
2352 | goto queuing_error; | |
2353 | } | |
9ba56b95 | 2354 | |
5162cf0c GM |
2355 | memset(ctx, 0, sizeof(struct ct6_dsd)); |
2356 | ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool, | |
2357 | GFP_ATOMIC, &ctx->fcp_cmnd_dma); | |
2358 | if (!ctx->fcp_cmnd) { | |
2359 | ql_log(ql_log_fatal, vha, 0x3011, | |
2360 | "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); | |
841f97bf | 2361 | goto queuing_error; |
5162cf0c GM |
2362 | } |
2363 | ||
2364 | /* Initialize the DSD list and dma handle */ | |
2365 | INIT_LIST_HEAD(&ctx->dsd_list); | |
2366 | ctx->dsd_use_cnt = 0; | |
2367 | ||
2368 | if (cmd->cmd_len > 16) { | |
2369 | additional_cdb_len = cmd->cmd_len - 16; | |
2370 | if ((cmd->cmd_len % 4) != 0) { | |
2371 | /* SCSI command bigger than 16 bytes must be | |
2372 | * multiple of 4 | |
2373 | */ | |
2374 | ql_log(ql_log_warn, vha, 0x3012, | |
2375 | "scsi cmd len %d not multiple of 4 " | |
2376 | "for cmd=%p.\n", cmd->cmd_len, cmd); | |
2377 | goto queuing_error_fcp_cmnd; | |
2378 | } | |
2379 | ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
2380 | } else { | |
2381 | additional_cdb_len = 0; | |
2382 | ctx->fcp_cmnd_len = 12 + 16 + 4; | |
2383 | } | |
2384 | ||
2385 | cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; | |
2386 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2387 | ||
2388 | /* Zero out remaining portion of packet. */ | |
2389 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ | |
2390 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2391 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2392 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2393 | ||
2394 | /* Set NPORT-ID and LUN number*/ | |
2395 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2396 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2397 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2398 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2399 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c GM |
2400 | |
2401 | /* Build IOCB segments */ | |
2402 | if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) | |
2403 | goto queuing_error_fcp_cmnd; | |
2404 | ||
9ba56b95 | 2405 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c GM |
2406 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2407 | ||
2408 | /* build FCP_CMND IU */ | |
2409 | memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
9ba56b95 | 2410 | int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); |
5162cf0c GM |
2411 | ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; |
2412 | ||
2413 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
2414 | ctx->fcp_cmnd->additional_cdb_len |= 1; | |
2415 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
2416 | ctx->fcp_cmnd->additional_cdb_len |= 2; | |
2417 | ||
2418 | /* | |
2419 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2420 | */ | |
2421 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2422 | switch (tag[0]) { | |
2423 | case HEAD_OF_QUEUE_TAG: | |
2424 | ctx->fcp_cmnd->task_attribute = | |
2425 | TSK_HEAD_OF_QUEUE; | |
2426 | break; | |
2427 | case ORDERED_QUEUE_TAG: | |
2428 | ctx->fcp_cmnd->task_attribute = | |
2429 | TSK_ORDERED; | |
2430 | break; | |
2431 | } | |
2432 | } | |
2433 | ||
a00f6296 SK |
2434 | /* Populate the FCP_PRIO. */ |
2435 | if (ha->flags.fcp_prio_enabled) | |
2436 | ctx->fcp_cmnd->task_attribute |= | |
2437 | sp->fcport->fcp_prio << 3; | |
2438 | ||
5162cf0c GM |
2439 | memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
2440 | ||
2441 | fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + | |
2442 | additional_cdb_len); | |
2443 | *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); | |
2444 | ||
2445 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); | |
2446 | cmd_pkt->fcp_cmnd_dseg_address[0] = | |
2447 | cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); | |
2448 | cmd_pkt->fcp_cmnd_dseg_address[1] = | |
2449 | cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); | |
2450 | ||
2451 | sp->flags |= SRB_FCP_CMND_DMA_VALID; | |
2452 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2453 | /* Set total data segment count. */ | |
2454 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2455 | /* Specify response queue number where | |
2456 | * completion should happen | |
2457 | */ | |
2458 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2459 | } else { | |
2460 | struct cmd_type_7 *cmd_pkt; | |
2461 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2462 | if (req->cnt < (req_cnt + 2)) { | |
2463 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2464 | ®->req_q_out[0]); | |
2465 | if (req->ring_index < cnt) | |
2466 | req->cnt = cnt - req->ring_index; | |
2467 | else | |
2468 | req->cnt = req->length - | |
2469 | (req->ring_index - cnt); | |
2470 | } | |
2471 | if (req->cnt < (req_cnt + 2)) | |
2472 | goto queuing_error; | |
2473 | ||
2474 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; | |
2475 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2476 | ||
2477 | /* Zero out remaining portion of packet. */ | |
2478 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2479 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2480 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2481 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2482 | ||
2483 | /* Set NPORT-ID and LUN number*/ | |
2484 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2485 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2486 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2487 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2488 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c | 2489 | |
9ba56b95 | 2490 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c | 2491 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, |
9ba56b95 | 2492 | sizeof(cmd_pkt->lun)); |
5162cf0c GM |
2493 | |
2494 | /* | |
2495 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2496 | */ | |
2497 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2498 | switch (tag[0]) { | |
2499 | case HEAD_OF_QUEUE_TAG: | |
2500 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
2501 | break; | |
2502 | case ORDERED_QUEUE_TAG: | |
2503 | cmd_pkt->task = TSK_ORDERED; | |
2504 | break; | |
2505 | } | |
2506 | } | |
2507 | ||
a00f6296 SK |
2508 | /* Populate the FCP_PRIO. */ |
2509 | if (ha->flags.fcp_prio_enabled) | |
2510 | cmd_pkt->task |= sp->fcport->fcp_prio << 3; | |
2511 | ||
5162cf0c GM |
2512 | /* Load SCSI command packet. */ |
2513 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
2514 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
2515 | ||
2516 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2517 | ||
2518 | /* Build IOCB segments */ | |
2519 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
2520 | ||
2521 | /* Set total data segment count. */ | |
2522 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2523 | /* Specify response queue number where | |
2524 | * completion should happen. | |
2525 | */ | |
2526 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2527 | ||
2528 | } | |
2529 | /* Build command packet. */ | |
2530 | req->current_outstanding_cmd = handle; | |
2531 | req->outstanding_cmds[handle] = sp; | |
2532 | sp->handle = handle; | |
9ba56b95 | 2533 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
5162cf0c GM |
2534 | req->cnt -= req_cnt; |
2535 | wmb(); | |
2536 | ||
2537 | /* Adjust ring index. */ | |
2538 | req->ring_index++; | |
2539 | if (req->ring_index == req->length) { | |
2540 | req->ring_index = 0; | |
2541 | req->ring_ptr = req->ring; | |
2542 | } else | |
2543 | req->ring_ptr++; | |
2544 | ||
2545 | sp->flags |= SRB_DMA_VALID; | |
2546 | ||
2547 | /* Set chip new ring index. */ | |
2548 | /* write, read and verify logic */ | |
2549 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
2550 | if (ql2xdbwr) | |
2551 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
2552 | else { | |
2553 | WRT_REG_DWORD( | |
2554 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2555 | dbval); | |
2556 | wmb(); | |
fa492630 | 2557 | while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) { |
5162cf0c GM |
2558 | WRT_REG_DWORD( |
2559 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2560 | dbval); | |
2561 | wmb(); | |
2562 | } | |
2563 | } | |
2564 | ||
2565 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
2566 | if (vha->flags.process_response_queue && | |
2567 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
2568 | qla24xx_process_response_queue(vha, rsp); | |
2569 | ||
2570 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2571 | return QLA_SUCCESS; | |
2572 | ||
2573 | queuing_error_fcp_cmnd: | |
2574 | dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); | |
2575 | queuing_error: | |
2576 | if (tot_dsds) | |
2577 | scsi_dma_unmap(cmd); | |
2578 | ||
9ba56b95 GM |
2579 | if (sp->u.scmd.ctx) { |
2580 | mempool_free(sp->u.scmd.ctx, ha->ctx_mempool); | |
2581 | sp->u.scmd.ctx = NULL; | |
5162cf0c GM |
2582 | } |
2583 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2584 | ||
2585 | return QLA_FUNCTION_FAILED; | |
2586 | } | |
2587 | ||
4440e46d AB |
2588 | void |
2589 | qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) | |
2590 | { | |
2591 | struct srb_iocb *aio = &sp->u.iocb_cmd; | |
2592 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2593 | struct req_que *req = vha->req; | |
2594 | ||
2595 | memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); | |
2596 | abt_iocb->entry_type = ABORT_IOCB_TYPE; | |
2597 | abt_iocb->entry_count = 1; | |
2598 | abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle)); | |
2599 | abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2600 | abt_iocb->handle_to_abort = | |
2601 | cpu_to_le32(MAKE_HANDLE(req->id, aio->u.abt.cmd_hndl)); | |
2602 | abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2603 | abt_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2604 | abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2605 | abt_iocb->vp_index = vha->vp_idx; | |
2606 | abt_iocb->req_que_no = cpu_to_le16(req->id); | |
2607 | /* Send the command to the firmware */ | |
2608 | wmb(); | |
2609 | } | |
2610 | ||
ac280b67 AV |
2611 | int |
2612 | qla2x00_start_sp(srb_t *sp) | |
2613 | { | |
2614 | int rval; | |
2615 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2616 | void *pkt; | |
ac280b67 AV |
2617 | unsigned long flags; |
2618 | ||
2619 | rval = QLA_FUNCTION_FAILED; | |
2620 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2621 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2622 | if (!pkt) { |
2623 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2624 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2625 | goto done; |
7c3df132 | 2626 | } |
ac280b67 AV |
2627 | |
2628 | rval = QLA_SUCCESS; | |
9ba56b95 | 2629 | switch (sp->type) { |
ac280b67 AV |
2630 | case SRB_LOGIN_CMD: |
2631 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2632 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2633 | qla2x00_login_iocb(sp, pkt); |
2634 | break; | |
2635 | case SRB_LOGOUT_CMD: | |
2636 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2637 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2638 | qla2x00_logout_iocb(sp, pkt); |
2639 | break; | |
9a069e19 GM |
2640 | case SRB_ELS_CMD_RPT: |
2641 | case SRB_ELS_CMD_HST: | |
2642 | qla24xx_els_iocb(sp, pkt); | |
2643 | break; | |
2644 | case SRB_CT_CMD: | |
9bc4f4fb | 2645 | IS_FWI2_CAPABLE(ha) ? |
5780790e AV |
2646 | qla24xx_ct_iocb(sp, pkt) : |
2647 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2648 | break; |
5ff1d584 AV |
2649 | case SRB_ADISC_CMD: |
2650 | IS_FWI2_CAPABLE(ha) ? | |
2651 | qla24xx_adisc_iocb(sp, pkt) : | |
2652 | qla2x00_adisc_iocb(sp, pkt); | |
2653 | break; | |
3822263e | 2654 | case SRB_TM_CMD: |
8ae6d9c7 GM |
2655 | IS_QLAFX00(ha) ? |
2656 | qlafx00_tm_iocb(sp, pkt) : | |
2657 | qla24xx_tm_iocb(sp, pkt); | |
2658 | break; | |
2659 | case SRB_FXIOCB_DCMD: | |
2660 | case SRB_FXIOCB_BCMD: | |
2661 | qlafx00_fxdisc_iocb(sp, pkt); | |
2662 | break; | |
2663 | case SRB_ABT_CMD: | |
4440e46d AB |
2664 | IS_QLAFX00(ha) ? |
2665 | qlafx00_abort_iocb(sp, pkt) : | |
2666 | qla24xx_abort_iocb(sp, pkt); | |
3822263e | 2667 | break; |
ac280b67 AV |
2668 | default: |
2669 | break; | |
2670 | } | |
2671 | ||
2672 | wmb(); | |
5162cf0c | 2673 | qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]); |
ac280b67 AV |
2674 | done: |
2675 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2676 | return rval; | |
2677 | } | |
a9b6f722 SK |
2678 | |
2679 | static void | |
2680 | qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, | |
2681 | struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) | |
2682 | { | |
2683 | uint16_t avail_dsds; | |
2684 | uint32_t *cur_dsd; | |
2685 | uint32_t req_data_len = 0; | |
2686 | uint32_t rsp_data_len = 0; | |
2687 | struct scatterlist *sg; | |
2688 | int index; | |
2689 | int entry_count = 1; | |
2690 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; | |
2691 | ||
2692 | /*Update entry type to indicate bidir command */ | |
2693 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
2694 | __constant_cpu_to_le32(COMMAND_BIDIRECTIONAL); | |
2695 | ||
2696 | /* Set the transfer direction, in this set both flags | |
2697 | * Also set the BD_WRAP_BACK flag, firmware will take care | |
2698 | * assigning DID=SID for outgoing pkts. | |
2699 | */ | |
2700 | cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2701 | cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2702 | cmd_pkt->control_flags = | |
2703 | __constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | | |
2704 | BD_WRAP_BACK); | |
2705 | ||
2706 | req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; | |
2707 | cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); | |
2708 | cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); | |
2709 | cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); | |
2710 | ||
2711 | vha->bidi_stats.transfer_bytes += req_data_len; | |
2712 | vha->bidi_stats.io_count++; | |
2713 | ||
fabbb8df JC |
2714 | vha->qla_stats.output_bytes += req_data_len; |
2715 | vha->qla_stats.output_requests++; | |
2716 | ||
a9b6f722 SK |
2717 | /* Only one dsd is available for bidirectional IOCB, remaining dsds |
2718 | * are bundled in continuation iocb | |
2719 | */ | |
2720 | avail_dsds = 1; | |
2721 | cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
2722 | ||
2723 | index = 0; | |
2724 | ||
2725 | for_each_sg(bsg_job->request_payload.sg_list, sg, | |
2726 | bsg_job->request_payload.sg_cnt, index) { | |
2727 | dma_addr_t sle_dma; | |
2728 | cont_a64_entry_t *cont_pkt; | |
2729 | ||
2730 | /* Allocate additional continuation packets */ | |
2731 | if (avail_dsds == 0) { | |
2732 | /* Continuation type 1 IOCB can accomodate | |
2733 | * 5 DSDS | |
2734 | */ | |
2735 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2736 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2737 | avail_dsds = 5; | |
2738 | entry_count++; | |
2739 | } | |
2740 | sle_dma = sg_dma_address(sg); | |
2741 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2742 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2743 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2744 | avail_dsds--; | |
2745 | } | |
2746 | /* For read request DSD will always goes to continuation IOCB | |
2747 | * and follow the write DSD. If there is room on the current IOCB | |
2748 | * then it is added to that IOCB else new continuation IOCB is | |
2749 | * allocated. | |
2750 | */ | |
2751 | for_each_sg(bsg_job->reply_payload.sg_list, sg, | |
2752 | bsg_job->reply_payload.sg_cnt, index) { | |
2753 | dma_addr_t sle_dma; | |
2754 | cont_a64_entry_t *cont_pkt; | |
2755 | ||
2756 | /* Allocate additional continuation packets */ | |
2757 | if (avail_dsds == 0) { | |
2758 | /* Continuation type 1 IOCB can accomodate | |
2759 | * 5 DSDS | |
2760 | */ | |
2761 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2762 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2763 | avail_dsds = 5; | |
2764 | entry_count++; | |
2765 | } | |
2766 | sle_dma = sg_dma_address(sg); | |
2767 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2768 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2769 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2770 | avail_dsds--; | |
2771 | } | |
2772 | /* This value should be same as number of IOCB required for this cmd */ | |
2773 | cmd_pkt->entry_count = entry_count; | |
2774 | } | |
2775 | ||
2776 | int | |
2777 | qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) | |
2778 | { | |
2779 | ||
2780 | struct qla_hw_data *ha = vha->hw; | |
2781 | unsigned long flags; | |
2782 | uint32_t handle; | |
2783 | uint32_t index; | |
2784 | uint16_t req_cnt; | |
2785 | uint16_t cnt; | |
2786 | uint32_t *clr_ptr; | |
2787 | struct cmd_bidir *cmd_pkt = NULL; | |
2788 | struct rsp_que *rsp; | |
2789 | struct req_que *req; | |
2790 | int rval = EXT_STATUS_OK; | |
a9b6f722 SK |
2791 | |
2792 | rval = QLA_SUCCESS; | |
2793 | ||
2794 | rsp = ha->rsp_q_map[0]; | |
2795 | req = vha->req; | |
2796 | ||
2797 | /* Send marker if required */ | |
2798 | if (vha->marker_needed != 0) { | |
2799 | if (qla2x00_marker(vha, req, | |
2800 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) | |
2801 | return EXT_STATUS_MAILBOX; | |
2802 | vha->marker_needed = 0; | |
2803 | } | |
2804 | ||
2805 | /* Acquire ring specific lock */ | |
2806 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2807 | ||
2808 | /* Check for room in outstanding command list. */ | |
2809 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2810 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
a9b6f722 | 2811 | handle++; |
8d93f550 | 2812 | if (handle == req->num_outstanding_cmds) |
a9b6f722 SK |
2813 | handle = 1; |
2814 | if (!req->outstanding_cmds[handle]) | |
2815 | break; | |
2816 | } | |
2817 | ||
8d93f550 | 2818 | if (index == req->num_outstanding_cmds) { |
a9b6f722 SK |
2819 | rval = EXT_STATUS_BUSY; |
2820 | goto queuing_error; | |
2821 | } | |
2822 | ||
2823 | /* Calculate number of IOCB required */ | |
2824 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2825 | ||
2826 | /* Check for room on request queue. */ | |
2827 | if (req->cnt < req_cnt + 2) { | |
7e98df22 | 2828 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
a9b6f722 SK |
2829 | |
2830 | if (req->ring_index < cnt) | |
2831 | req->cnt = cnt - req->ring_index; | |
2832 | else | |
2833 | req->cnt = req->length - | |
2834 | (req->ring_index - cnt); | |
2835 | } | |
2836 | if (req->cnt < req_cnt + 2) { | |
2837 | rval = EXT_STATUS_BUSY; | |
2838 | goto queuing_error; | |
2839 | } | |
2840 | ||
2841 | cmd_pkt = (struct cmd_bidir *)req->ring_ptr; | |
2842 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2843 | ||
2844 | /* Zero out remaining portion of packet. */ | |
2845 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2846 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2847 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2848 | ||
2849 | /* Set NPORT-ID (of vha)*/ | |
2850 | cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); | |
2851 | cmd_pkt->port_id[0] = vha->d_id.b.al_pa; | |
2852 | cmd_pkt->port_id[1] = vha->d_id.b.area; | |
2853 | cmd_pkt->port_id[2] = vha->d_id.b.domain; | |
2854 | ||
2855 | qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); | |
2856 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2857 | /* Build command packet. */ | |
2858 | req->current_outstanding_cmd = handle; | |
2859 | req->outstanding_cmds[handle] = sp; | |
2860 | sp->handle = handle; | |
2861 | req->cnt -= req_cnt; | |
2862 | ||
2863 | /* Send the command to the firmware */ | |
2864 | wmb(); | |
2865 | qla2x00_start_iocbs(vha, req); | |
2866 | queuing_error: | |
2867 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2868 | return rval; | |
2869 | } |